The following functionality is currently deprecated, and will likely be removed in a future release. If you think you have a good reason to be using one of the following, contact the developers to explain your use case if you want to make sure your code continues to work. This is in addition to specific API calls marked with BOTAN_DEPRECATED in the source. Currently deprecated: - ECB Cipher_Mode for block ciphers - 3DES and SEED ciphersuites in TLS - DSA ciphersuites/certs in TLS - CAST-256, Kasumi, MISTY1, and DESX ciphers - CBC-MAC, X9.19-MAC - PBKDF1 key derivation - Old (Google specific) ChaCha20 TLS ciphersuites - All built in ECC groups < 256 bits - All built in MODP groups < 2048 bits - All pre-created DSA groups